EP0735747A1 - Méthode et appareil pour la conversion vers le haut de la fréquence trame compensée en mouvement - Google Patents
Méthode et appareil pour la conversion vers le haut de la fréquence trame compensée en mouvement Download PDFInfo
- Publication number
- EP0735747A1 EP0735747A1 EP96104579A EP96104579A EP0735747A1 EP 0735747 A1 EP0735747 A1 EP 0735747A1 EP 96104579 A EP96104579 A EP 96104579A EP 96104579 A EP96104579 A EP 96104579A EP 0735747 A1 EP0735747 A1 EP 0735747A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- motion
- field
- noise reduction
- output
- input
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims description 43
- 230000009467 reduction Effects 0.000 claims abstract description 69
- 230000015654 memory Effects 0.000 claims abstract description 60
- 230000002123 temporal effect Effects 0.000 claims abstract description 59
- 239000013598 vector Substances 0.000 claims description 119
- 230000006870 function Effects 0.000 claims description 23
- 230000000737 periodic effect Effects 0.000 claims description 12
- 238000001914 filtration Methods 0.000 claims description 10
- 238000012937 correction Methods 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 4
- 101100496169 Arabidopsis thaliana CLH1 gene Proteins 0.000 claims description 3
- 101150047265 COR2 gene Proteins 0.000 claims description 3
- 101100044057 Mesocricetus auratus SYCP3 gene Proteins 0.000 claims description 3
- 101100467189 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) QCR2 gene Proteins 0.000 claims description 3
- 101100080600 Schizosaccharomyces pombe (strain 972 / ATCC 24843) nse6 gene Proteins 0.000 claims description 3
- 101150111293 cor-1 gene Proteins 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 2
- 238000012545 processing Methods 0.000 description 22
- 230000001934 delay Effects 0.000 description 13
- 238000004364 calculation method Methods 0.000 description 12
- 238000010586 diagram Methods 0.000 description 11
- 101100299489 Oryza sativa subsp. japonica PTD gene Proteins 0.000 description 9
- 101100136621 Petunia hybrida PT4 gene Proteins 0.000 description 9
- 241000710117 Southern bean mosaic virus Species 0.000 description 7
- 101100021996 Arabidopsis thaliana CYP97C1 gene Proteins 0.000 description 5
- 101100510695 Arabidopsis thaliana LUT2 gene Proteins 0.000 description 5
- 230000000295 complement effect Effects 0.000 description 5
- 230000001419 dependent effect Effects 0.000 description 5
- 241000023320 Luma <angiosperm> Species 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- OSWPMRLSEDHDFF-UHFFFAOYSA-N methyl salicylate Chemical compound COC(=O)C1=CC=CC=C1O OSWPMRLSEDHDFF-UHFFFAOYSA-N 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 230000003044 adaptive effect Effects 0.000 description 3
- 230000003321 amplification Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000003199 nucleic acid amplification method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000011045 prefiltration Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 238000012935 Averaging Methods 0.000 description 1
- 101100085205 Dictyostelium discoideum ptpB gene Proteins 0.000 description 1
- 101100345696 Drosophila melanogaster Mlp84B gene Proteins 0.000 description 1
- 101001020548 Homo sapiens LIM/homeobox protein Lhx1 Proteins 0.000 description 1
- 101000976913 Homo sapiens Lens fiber major intrinsic protein Proteins 0.000 description 1
- 101001005166 Homo sapiens Lens fiber membrane intrinsic protein Proteins 0.000 description 1
- 102100023487 Lens fiber major intrinsic protein Human genes 0.000 description 1
- 102100026038 Lens fiber membrane intrinsic protein Human genes 0.000 description 1
- 101100511174 Lilium longiflorum LIM3 gene Proteins 0.000 description 1
- 101150063139 PTP2 gene Proteins 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 101150110371 lhx3 gene Proteins 0.000 description 1
- 238000012886 linear function Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/14—Picture signal circuitry for video frequency region
- H04N5/144—Movement detection
- H04N5/145—Movement estimation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/14—Picture signal circuitry for video frequency region
- H04N5/21—Circuitry for suppressing or minimising disturbance, e.g. moiré or halo
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/01—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level
- H04N7/0117—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level involving conversion of the spatial resolution of the incoming video signal
- H04N7/012—Conversion between an interlaced and a progressive signal
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/01—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level
- H04N7/0127—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level by changing the field or frame frequency of the incoming video signal, e.g. frame rate converter
- H04N7/0132—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level by changing the field or frame frequency of the incoming video signal, e.g. frame rate converter the field or frame frequency of the incoming video signal being multiplied by a positive integer, e.g. for flicker reduction
Definitions
- One advantage of the invention is that even when spatial and recursive temporal noise reduction are added to the motion compensated upconversion (MCU), two field memories only are sufficient to perform these functions. This can be achieved with special circuitry under the condition that the motion compensated interpolator receives partly the same video input signal as the motion estimator and that, once a wrong motion vector is calculated, the temporal filter will not propagate this error. Tests have shown that the latter can be achieved due to the kind of control used in the temporal noise reduction and that the error will decay from field to field.
- a further advantage of the invention is that motion vectors for large main blocks need to be stored only so that the vector memory can have a low capacity.
- Fig. 5 differs from that of Fig. 4 in that spatial filter SF is omitted at its original location but that the function of SF is included into motion estimator ME.
- Fig. 6 differs from that of Fig. 5 in that predictor PRED is omitted at its original location but that the function of PRED is included into motion compensated interpolator MCI.
- the spatial noise reduction filter may comprise a horizontal and/or vertical and/or diagonal lowpass filter and/or may comprise a two-dimensional or a directional median filter as depicted in Fig. 20. In case of directional filtering the filter direction is a function of the correlation of the central pixel with the corresponding neighbouring pixels.
- the filter of Fig. 20 operates in a window of e.g. 3*3 pixels and reduces impulse noise but preserves texture, details and edges and works in the following way:
- the arrows d1 to d4 depict filtering directions with the pixel values x11 to x33.
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Computer Graphics (AREA)
- Television Systems (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP19960104579 EP0735747B1 (fr) | 1995-03-31 | 1996-03-22 | Méthode et appareil pour la conversion vers le haut de la fréquence trame compensée en mouvement |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP95400722 | 1995-03-31 | ||
| EP95400722 | 1995-03-31 | ||
| EP19960104579 EP0735747B1 (fr) | 1995-03-31 | 1996-03-22 | Méthode et appareil pour la conversion vers le haut de la fréquence trame compensée en mouvement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0735747A1 true EP0735747A1 (fr) | 1996-10-02 |
| EP0735747B1 EP0735747B1 (fr) | 1999-11-03 |
Family
ID=26140530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19960104579 Expired - Lifetime EP0735747B1 (fr) | 1995-03-31 | 1996-03-22 | Méthode et appareil pour la conversion vers le haut de la fréquence trame compensée en mouvement |
Country Status (1)
| Country | Link |
|---|---|
| EP (1) | EP0735747B1 (fr) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0950899A1 (fr) * | 1998-04-14 | 1999-10-20 | THOMSON multimedia S.A. | Méthode d'estimation du niveau de bruit dans une séquence vidéo |
| EP0957367A1 (fr) * | 1998-04-14 | 1999-11-17 | THOMSON multimedia | Méthode d'estimation du niveau de bruit dans une séquence vidéo |
| WO2001093593A1 (fr) * | 2000-05-31 | 2001-12-06 | Thomson Licensing S.A. | Dispositif et procede de codage video avec filtrage recursif compense en mouvement |
| FR2809916A1 (fr) * | 2000-05-31 | 2001-12-07 | Thomson Multimedia Sa | Dispositif et procede de filtrage recursif compense en mouvement d'images video avant codage et systeme de codage correspondant |
| WO2002005548A1 (fr) * | 2000-07-08 | 2002-01-17 | Bts Holding International B.V. | Dispositif de reduction des scintillements parasites |
| US6810081B2 (en) * | 2000-12-15 | 2004-10-26 | Koninklijke Philips Electronics N.V. | Method for improving accuracy of block based motion compensation |
| EP1163797A4 (fr) * | 1998-12-18 | 2005-08-17 | Oplus Technologies Ltd | Procede de desimbrication de signaux video recourant a une technique d'approximation a mode mixte spatial et temporel |
| WO2007117623A3 (fr) * | 2006-04-07 | 2007-12-06 | Marvell World Trade Ltd | Réducteur de bruit vidéo reconfigurable à étalonnage automatique |
| WO2007122589A3 (fr) * | 2006-04-25 | 2008-01-24 | Nokia Corp | Conversion élévatrice spatiale vidéo à compensation de mouvement |
| CN100385953C (zh) * | 2001-07-10 | 2008-04-30 | 皇家菲利浦电子有限公司 | 移动估计的单元和方法以及装备有此类移动估计单元的图像处理设备 |
| EP2227902A4 (fr) * | 2007-12-26 | 2011-01-05 | Toshiba Kk | Appareil et procédé de génération de trame d'interpolation et appareil de réception de radiodiffusion |
| WO2011002391A1 (fr) * | 2009-07-02 | 2011-01-06 | Scint-X Ab | Réduction du bruit provoqué par l'absorption de photons de rayons x dans des capteurs d'image pixellisée |
| US9215353B2 (en) | 2010-06-08 | 2015-12-15 | Sharp Kabushiki Kaisha | Image processing device, image processing method, image display device, and image display method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0196756A2 (fr) * | 1985-02-14 | 1986-10-08 | Faroudja, Yves Charles | Système interdimensionnel de réduction du bruit de chrominance |
| JPH0281596A (ja) * | 1988-09-17 | 1990-03-22 | Sony Corp | 映像信号処理装置 |
| EP0577165A1 (fr) * | 1992-05-15 | 1994-01-05 | Koninklijke Philips Electronics N.V. | Appareil pour interpoler des signaux d'images par interpolation à compensation de mouvement |
-
1996
- 1996-03-22 EP EP19960104579 patent/EP0735747B1/fr not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0196756A2 (fr) * | 1985-02-14 | 1986-10-08 | Faroudja, Yves Charles | Système interdimensionnel de réduction du bruit de chrominance |
| JPH0281596A (ja) * | 1988-09-17 | 1990-03-22 | Sony Corp | 映像信号処理装置 |
| EP0577165A1 (fr) * | 1992-05-15 | 1994-01-05 | Koninklijke Philips Electronics N.V. | Appareil pour interpoler des signaux d'images par interpolation à compensation de mouvement |
Non-Patent Citations (2)
| Title |
|---|
| KOIVUNEN T: "A NOISE-INSENSITIVE MOTION DETECTOR", 1 August 1992, IEEE TRANSACTIONS ON CONSUMER ELECTRONICS, VOL. 38, NR. 3, PAGE(S) 168 - 174, XP002007200 * |
| PATENT ABSTRACTS OF JAPAN vol. 14, no. 263 (E - 938) 7 June 1990 (1990-06-07) * |
Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0950899A1 (fr) * | 1998-04-14 | 1999-10-20 | THOMSON multimedia S.A. | Méthode d'estimation du niveau de bruit dans une séquence vidéo |
| EP0957367A1 (fr) * | 1998-04-14 | 1999-11-17 | THOMSON multimedia | Méthode d'estimation du niveau de bruit dans une séquence vidéo |
| US6307888B1 (en) | 1998-04-14 | 2001-10-23 | Thomson Licensing S.A | Method for estimating the noise level in a video sequence |
| EP1163797A4 (fr) * | 1998-12-18 | 2005-08-17 | Oplus Technologies Ltd | Procede de desimbrication de signaux video recourant a une technique d'approximation a mode mixte spatial et temporel |
| WO2001093593A1 (fr) * | 2000-05-31 | 2001-12-06 | Thomson Licensing S.A. | Dispositif et procede de codage video avec filtrage recursif compense en mouvement |
| FR2809916A1 (fr) * | 2000-05-31 | 2001-12-07 | Thomson Multimedia Sa | Dispositif et procede de filtrage recursif compense en mouvement d'images video avant codage et systeme de codage correspondant |
| US6944230B2 (en) | 2000-05-31 | 2005-09-13 | Thomson Licensing | Device and method for motion-compensated recursive filtering of video images |
| WO2002005548A1 (fr) * | 2000-07-08 | 2002-01-17 | Bts Holding International B.V. | Dispositif de reduction des scintillements parasites |
| US7466364B2 (en) | 2000-07-08 | 2008-12-16 | Thomson Licensing | Device for reducing flicker defects |
| US6810081B2 (en) * | 2000-12-15 | 2004-10-26 | Koninklijke Philips Electronics N.V. | Method for improving accuracy of block based motion compensation |
| CN100385953C (zh) * | 2001-07-10 | 2008-04-30 | 皇家菲利浦电子有限公司 | 移动估计的单元和方法以及装备有此类移动估计单元的图像处理设备 |
| WO2007117623A3 (fr) * | 2006-04-07 | 2007-12-06 | Marvell World Trade Ltd | Réducteur de bruit vidéo reconfigurable à étalonnage automatique |
| US7821578B2 (en) | 2006-04-07 | 2010-10-26 | Marvell World Trade Ltd. | Reconfigurable self-calibrating adaptive noise reducer |
| WO2007122589A3 (fr) * | 2006-04-25 | 2008-01-24 | Nokia Corp | Conversion élévatrice spatiale vidéo à compensation de mouvement |
| US7701509B2 (en) | 2006-04-25 | 2010-04-20 | Nokia Corporation | Motion compensated video spatial up-conversion |
| EP2227902A4 (fr) * | 2007-12-26 | 2011-01-05 | Toshiba Kk | Appareil et procédé de génération de trame d'interpolation et appareil de réception de radiodiffusion |
| US8432973B2 (en) | 2007-12-26 | 2013-04-30 | Kabushiki Kaisha Toshiba | Interpolation frame generation apparatus, interpolation frame generation method, and broadcast receiving apparatus |
| WO2011002391A1 (fr) * | 2009-07-02 | 2011-01-06 | Scint-X Ab | Réduction du bruit provoqué par l'absorption de photons de rayons x dans des capteurs d'image pixellisée |
| CN102576455A (zh) * | 2009-07-02 | 2012-07-11 | 斯基恩特-X公司 | 降低在像素化图像传感器中由吸收x射线光子导致的噪点 |
| US8908954B2 (en) | 2009-07-02 | 2014-12-09 | Scint-X Ab | Reduction of noise caused by absorption of x-ray photons in pixelated image sensors |
| CN102576455B (zh) * | 2009-07-02 | 2015-05-20 | 斯基恩特-X公司 | 降低在像素化图像传感器中由吸收x射线光子导致的噪点 |
| US9215353B2 (en) | 2010-06-08 | 2015-12-15 | Sharp Kabushiki Kaisha | Image processing device, image processing method, image display device, and image display method |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0735747B1 (fr) | 1999-11-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6181382B1 (en) | HDTV up converter | |
| US5793435A (en) | Deinterlacing of video using a variable coefficient spatio-temporal filter | |
| US6509930B1 (en) | Circuit for scan conversion of picture signal using motion compensation | |
| US7262818B2 (en) | Video system with de-motion-blur processing | |
| US5784114A (en) | Motion compensated video processing | |
| De Haan et al. | True-motion estimation with 3-D recursive search block matching | |
| US7423691B2 (en) | Method of low latency interlace to progressive video format conversion | |
| EP0735747B1 (fr) | Méthode et appareil pour la conversion vers le haut de la fréquence trame compensée en mouvement | |
| US5444493A (en) | Method and apparatus for providing intra-field interpolation of video signals with adaptive weighting based on gradients of temporally adjacent fields | |
| KR920004561B1 (ko) | 텔레비젼신호의 움직임 검출회로 | |
| JP2001320679A (ja) | 映像インターレース−順次走査変換器における補間アーティファクトを隠すための装置および方法 | |
| JPS63313981A (ja) | ディジタルテレビジョン画像の動きベクトル処理装置 | |
| US5504531A (en) | Method and apparatus for field rate up-conversion | |
| US6295091B1 (en) | Method and apparatus for de-interlacing video fields for superior edge preservation | |
| US5386237A (en) | Method and apparatus for adaptive progressive scan conversion | |
| WO1999067952A1 (fr) | Procede et dispositif de conversion de nombre de trames de signaux d'images | |
| EP0735746B1 (fr) | Méthode et appareil pour la conversion vers le haut de la fréquence trame compensée en mouvement | |
| JPH02131689A (ja) | フィールド内補間回路 | |
| JPH11298861A (ja) | 画像信号のフレーム数変換方法および装置 | |
| EP1084577A1 (fr) | Transposeur de frequence pour television haute definition | |
| EP0817478A1 (fr) | Procédé d'interpolation de trames pour compatibilité mode film | |
| JP3882854B2 (ja) | 動き補償されたアップコンバージョンの方法及び装置 | |
| US7142223B2 (en) | Mixed 2D and 3D de-interlacer | |
| US7391476B2 (en) | Method and device for interpolating a pixel of an interline of a field | |
| EP0348186A2 (fr) | Système de réduction de largeur de bande pour la télévision |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): DE FR GB IT |
|
| 17P | Request for examination filed |
Effective date: 19970305 |
|
| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: THOMSON MULTIMEDIA |
|
| 17Q | First examination report despatched |
Effective date: 19981008 |
|
| GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
| GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
| GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
| GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): DE FR GB IT |
|
| REF | Corresponds to: |
Ref document number: 69604958 Country of ref document: DE Date of ref document: 19991209 |
|
| ET | Fr: translation filed | ||
| ITF | It: translation for a ep patent filed | ||
| PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
| 26N | No opposition filed | ||
| REG | Reference to a national code |
Ref country code: GB Ref legal event code: 746 Effective date: 20010813 |
|
| REG | Reference to a national code |
Ref country code: GB Ref legal event code: IF02 |
|
| REG | Reference to a national code |
Ref country code: FR Ref legal event code: D6 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20120317 Year of fee payment: 17 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20130322 Year of fee payment: 18 Ref country code: GB Payment date: 20130327 Year of fee payment: 18 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20130412 Year of fee payment: 18 |
|
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 69604958 Country of ref document: DE |
|
| GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20140322 |
|
| REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20141128 |
|
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 69604958 Country of ref document: DE Effective date: 20141001 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20141001 Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20140322 Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20140331 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20140322 |